Unfortunately, for you, my friend, there is no plural for could. To make an existing word into a plural, it must be a noun (eg. dog, desk, planet). I, myself, don' exactly understand why such a question would be asked? If you don't mind me asking, why?
cuffs is the best answer that I could think of
Singular: status Plural: status, statuses So, status could be either singular or plural.
Mail is both singular and plural. You could receive one piece of mail or you could receive lots of mail.
Wild goats is the plural of wild goat. You could have one wild goat (singular) or many wild goats (plural).
The plural is vacuums. (could be vacuum cleaners, or separate situations of a vacuum)
The plural form could be Fs.
cuffs is the best answer that I could think of
No! Although the plural form of axis is pronounced axies, the plural form is axes.
Singular: status Plural: status, statuses So, status could be either singular or plural.
Mail is both singular and plural. You could receive one piece of mail or you could receive lots of mail.
It could be octopuses or octopi
The plural form of the noun 'fetus' is fetuses, or it could be 'twins'.
The plural form of Martin is Martins. What else could it possibly be?
It could be IPOs.
videos
This could apply to several animals: the elephant (plural elephants) the rhinoceros (plural rhinoceroses, or just rhinos) the pig (plural pigs)
Odynophagia means pain with swallowing. I'm not sure how you could have that in plural.